<!-- 
 使用 linear-gradient 
 、radial-gradient
 -->
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<head>
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    <title>Document</title>
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<body>
    <div class="div1">
        切角效果 -linear-gradient
    </div>
    <div class="div2">
        弧形切角 -radial-gradient
    </div>
    <div class="div3">
        裁切路径
    </div>
</body>

</html>